In a semiconductor sample subjected to the Hall experiment the velocity of the majority carriers was found to be 2x10 cm/s while the sample resistance was found to be 2 Ko. The sample width is 3 cm, and its length is 6 cm while the sample cross sectional area is 1.5 cm and the current through the sample length is 30 ma under an applied magnetic field of 5 KG. The mobility of the majority carriers will be: O 166.7 cm ^2NS O 5333 am 2NS O2.000e6 cm^2/N.s O 1000 cm^2/NS O 2000 cm^2Ns